Ignition device for gas ranges, etc.



May Z6, 1925.

H. W. ODOWD IGNITION DEVICE FOR GAS` RANGES, TC

original Filed sept. 2s, 1921 2 sheets-sheet 1 May 26, 1925. l 1,539,324

I H. W. ODOWD.

' IGNITION DEVICE FOR,GAS RANGES, ETC

Original Filed Sept. 2 8, 1921 2 Sheets-Sheet 2 Patented May 216, 1925.

UNITED 'STATES 1,539,324 PATENTol-Flcra HENRY W. ODOWD, OF JERSEY CITY, NEW JERSEY, ASSIGN'IR',y BY MESNE ASSIGN- MENTS, TO STANDARD GAS EQUIPMENT CORPORATION, OF BALTIMORE, MARY- LAND, A CORPORATION'OF MARYLAND.

' IGNITION DEVICE FOR GAS RANGES, ETC,

Application filed September 28, 1921, Serial No. 503,972. Renewed November 1, 1924.

To alito/m, it may concern.'

Be it known that I, I-InNnr W. ODown, a 'citizen of the United States, residing at Jersey City, county of Hudsomffand State 5 of New Jersey, have invented certain new and useful Improvements in Ignition Devices for (ias Ranges, Etc.,'of,which the following is a specification.

The invention relates to 'ignition devices for gas-ranges, and is particularly designed for lighting burners that are situated under the bottom plates of bake ovens, or housed in closed heat-generating chambers, where they cannot be conveniently reached, in n0rmal operative conditions.

rllhe primary `object of the invention is to provide an improved and dependable appliance of the type mentioned whereby the flame from a lighted match, or the like, applied toV a tiny jet of gas atV ornear the front of a range will be immediately transmitted to any part therein where a burner is to be ignited. A Another object is ther provision of means insuring the most direct propagation of the iiame along` a transmitter of the nature set forth, and in such a manner that it will spread smoothly, regularly, and with infallible accuracy from the point of applica.-`

xo tion of the' lighting agent to the place of ignition.

A further object is the production of an igniting device of the character described, capable of being positioned so as to operate both above, and below the plane of the fiame ports of the burner to he lighted, in order that it. may check forthwith the flow of unburnt gas first ascending from the latter and prevent accumulation thereof within the range, thus avoiding internal explosions, the spread of noxious fumes, and waste of fuel. i y

Still another object is to produce a pilotburner of the species referred to, which shall be of simple construction; easily applied, removed and replaced; convenient to operate; and inexpensive to manufacture.

Other objects and advantagesy of the invention will in part be obvious and in part be more fully brought out inthe following description. l

lhe invention consists of the novel improvements, parts, combinations, and features of construction h'erein shown and described. 4

Referring to the drawing hereto annexed,

for a detailed description of the-invcntion,-

Fig. l is a sectional side elevation, showing part of a vgasrange within which is -mounted a burnerk furnished with an 1mp-roved ified; p

Fig. 2 isa top plan view of `the burner and its pilot-burner, both connected to a fragmentary portion of they front wall of the gas-range; and

pilot-burner of the kind herein spec- Fig. 3 is a` longitudinal sectional eleva-y tion of the burner alone, shown on a considerably reduced scale.t f

Fig. 4 is a side elevation of a modification of the invention.

Fig. 5 is a top plan view of the same.

The improved pilot-burner represented in the said drawing is applicable to .cooking ranges, or heating apparatus, of any known type or make that can be operated with fuel-gas, or' other fluid fuel possessing equivalent caloriiic properties. It is indifferent also whether the fuelbe consumed in one section or another of a as-ran e, as-

suming that' the pilot-burner 1s ri ht y fitted to the'burner therein. For t ese reasons, only the-section containing the heating burner and pilot-burner need be referred to herein, and consequently in the accompanying drawing the illustration has been .restricted to showing them merely in connection with the lower ortion of a range, the lsame including rsimp y a heating chamber, as 11, underlying an oven 12, and separated therefrom by a removable' plate 13,

'which constitutes the ovens bottom.

with the customary terminal su ports, as

17, 18, adapted to engage brac ets (not shown)cin the opposite sides of the range. 'lhe several sections of the burner comsus` 1 with the gas -prior to its being consumed. y

`a mixing chamberin the form of a feed-tube 21, that may be cast integral therewith and terminates 1n an enlarged head 22, constituting an an' chamber into which air 'tis drawn A supply-pipe 23, controlled by a plugvalve 24, discharges the gas into the air chamber which is fitted, 1n.a well-known manner, Within an opening provided therefor, as at 25, in the front wall of the range.

As will be observed, the .tube 21 and head 22 thereof extend both at right angles to the said front Wall and to the major axis ofthe ellipse circumscribing the body of the burner.

The pilot-burner or flame transmitter proper, in the embodiment of the invention hereinexemplified, consists of a small tube 28, designed for attachment, preferably, to the front wall of the range within the heating chamber 11, and to the burner 16, therein enclosed. As seen in Fig. 1, the tube 28 is placed at an incline with relation to both the chamber and the burner, being made to lreach from the upper front corner of the former down to and across the underside of the latter near its forward edge. It is supported by, and put into communication with, the body of the burner` through the medium of an offset socket 29,' engaging a nipple 30. The socket. as shown in Figs. 1 and 2, is formed on the upper side of the tube 28, intermediately of its length, whereas the nipple, which appears uncovered in Fig. 3, pro jects obliquely and upwardly from the burner. The nipple and the socket, of

course, are oppositely directed in a plane 'parallel to that of the inclinedtube 28, and

therefore become readily engaged as th tube is introducedv into`the heating chamber and set in the position above pointed out.

The tube 28 finds another support on the front wall of the heating chamber 11, against which it is adapted to rest. For'this purpose, the upper end of the tube is provided with a flat head 32, which extends downward at an angle to its body and constitutes an abutment, bearing squarely upon the inner face of the said front wall. In order to revent its displacement, the head 32 is anged on both sides and caused to engage a keeper 33 on this wall, as seen most clearly in Fig. 2.

In addition to being sustained and steadied, both interiorly and exteriorly, by its socket 29 engaging the nipple 30, and its anged head 32 caught in the keeper 33, the tube 2S is further held in place by the lower end thereof taking under the forward member of the elliptic burner 16, in the manner represented in Fig. 1. A firm setting of the tube is thereby secured, without resorting to the use of screws, rivets, bolts and nuts, or similar fastenin'gs. v I

Small perforations, as 36, are provided throughout the length of the tube 28, to afford outlets for the gas that enters it from the burner 1.6, communicating therewith by way of the nipple 30 and socket 29.

By preference and as shown, these perforations are arranged in one' side of thev tube and are disposed in close relations to each other so as to form a straight and continuous line of jets of diminutive size, which line extending from a point above the burner extends obliquely and rearwardly downward below and beyond the ports of the burner 16, the line of jets of the pilot-burner 4thus intersecting the plane of the fjets of the burner 16. As a result of the construction described, when the jets of the pilot-burner are ignited at the upper 'forward portion of the tube 28, a flame will be propagated from the upper part of the heating chamber at the front down into the lower middle portion of the same and beneath the burner therein, thereby igniting the jets of the burner 1.6. For the purpose of lighting the pilot-burner jets an ignition aperture-38-is--formed-i-n'theV forward edge of the bottom plate 13 of the oven 12, through which the flame from a burning match may be applied. The llame, it is understood, firesthe gas emitted by the line of perforations 36, at the right of the tube 28, and is instantaneously transmitted thereby to the outer and inner series of ports, 2O and 19. of the burner, which the lower terminal of the tube crosses at substantially right angles in an oblique direction. lThence the line of flame conveyed along the side of the tube spreads out therefrom in like manner around the ellipse of the burner and sets ablaze the gas issuing from its ports. lt will be perceived that, owing to the peculiar position given to the tube 28, the lighted jets thereof are well adapted to'fire at once all of the gas which may arise in any part of the chamber 12` that is, as soon as it is turned on by opening the plug-valve 24. No unconsumed gas will accumulate in the heating chamber, 1f only the flame is seasonably applied through the aperture 38, in the bottom of the oven. Due to the location of the aperture 38 in the botton. plate of t-he. oven. it will be necessary in order to gain access to said aperture for the purpose of .igniting the pilot-burner jets, to first open the oven door 37 thereby reducing the liability of explosion of gas within the oven from a leaky 12,' in order chosen `as an example, the socket `29 and the nipple 3() are located at the upper' part of the burner 16, remote from the fiameV ports in the'latteI-which are directed downdci-stood that the improved flame transmitpredetermined plane,

ter forming the subject-matter hereof isapplicable as well to burners having ports differently disposed, w-ith obvious. transpositions of the means of attachment and gas conveyingvmedia that are required to constitute an operative combination.

In Fig. 4 the pilot-burner is shown applied to the heating burner in a different relation yfrom that in the other figures, although the construction of the pilot-burner is the same and its functional operation similar to that first described. In this figure the feed tube 21 and enlarged head 22 constituting respectively the mixing chamber and air chamber of the burner, extends from one end of the sameaxially thereof, and the tube 28 of the pilot-burner is applied to the forward portion of the burner and extends in substantial parallelism with the mixing chamber, the pilot-burnerperforatiens 36a extending as in the 'first lnstance described,-ina line along the side of the tube 28"L and intersecting at its lower end the plane of thefports of the burner 16a.

In its broader'aspeet, therefore, the inventionis not limited to the precise features ot construction and arrangement of parts herein shown and described, nor to any particular construction by means of which it can 4be carried into effect, as many changes may be made lin the details withou departing from the principles of the invention and without sacrificing its chief advantages.

I claim: l

1. In a gas-range, the combination with a heating chamber, ofa heating burner in said chamber having portsdisposed at a a pilot-burner provided with a continuous line of perforations'intersectin'g said plane and disposed on both sides thereof, and means for supplying gas from'the. heating burner to the pilot-burner: whereby a flame applied to the -perforations of the pilot-burner will be transmitted to the portsof the heating burner.

v2. In a gas-range, the combination with a heating chamber'and an oven superposed thereon, of a heating burner in said chamber having a series of flame ports disposed vin a plane'approximately parallel. to the bott'omof the oven, and a pilot-burner provided with a continuous hnehofjets, said -pilot-burner extending across and below the plane of" the ame portsand arranged to t. heating chamber and `ingan ignition aperture 1n its bottom, of a heating burner'in the heating chamber" propagate a flame from onefparty 'of the chamber transversely of', across 'and kbelow the plane of the flame pg'rts of the heating burner.` w

3.-In` a gas-range, tliecombination with aheating chamber, ,ofI a burner mounted therein and provided with an'upwardly cxtending hollow nipple communicating with the interior of the burner, and a pilot-'burner extending down tofand b'elow'the heating burner and provided between its ends with a Socket surrounding the nipple and communicating with the interior 'of' the pilotburner.` l

4. In a gas-range, the combination with a heating chamber, lof a heating burner mounted therein, a pilot-burner formed with va head arranged to bear against a wall of said chamber in a higher plane than that of" said heating burner,the body oi. said pilot-burner beinglinclined from its head toward the heating burner and being p'rovided between its ends with a longitudinally extending socket offset from the body, and supporting means on the heating burner entering said offset socket to sustain-the lower end of the pilot-burnerin its proper relation tothe heating burner.

In a gas-range, the combination with aheating chamber, of a heating burner in said chamber, burner lcommunicating with said' heating burner, an anchorage on a-wall of the chamber vadapted to receive the upper end ot said pilot-burner, and means on thelatter serving to hold its lower end suspended from and wholly below the heating burner.

6. Inv a gas-range, the combination with a heating chamber, ot a Aheatingburner t herein,a inlet-burner inclined downfrom a wall ot' 4said chamber to said-heating burner, a tabular element on the latter similarly inclined towards said wall, anda projecting hollow member on said pilotburner adapted-to fit-over said tubular elef ment. u 5 i 7. In a gas-raI1ge,1the combination with a heating chamber, of'a heating burner therein, a pilot-burner extending `from a wall ot said chamber toward ports 'of said'hcating immer, means foranchoring one end of said an obliqucly vdi'sposed'pilotand the pilot-burner to holdvthe other end of the latter adjacent to said ports, said connection being formed of hollow parts affording a communication between the pilotburner and heating burner and serving to supply gas from the heating burner tothe pilot-burner. l

8. In a gas-range, the combination with a an oven thercover havprovided with a series of burner ports. and

-poscd in concentric annuli therearound, and

a flame transmitter providedwith a continuous line of jets extending from a wall of the chamber to said heating burner and transversely past and below the ports therein.

10. In 'a gas-range, the combination with a heating chamber and an oven superposed thereon and provided with an aperture in its bottom, of a heating burner insaid chamber having endless series of ports arranged'concentrically one series within another, and a flame transmitter provided with perforations constituting a continuous line of jets disposed respectively above and below said series of ports and capable of conveying a fiame transversely of said series of ports from said aperture.

11. In a gas range,J the combination with a heating chamber andan oven -supe-rposed thereon, of a heating burner in said chamber having a series of flame ports disposed in a plane approximately parallel to the bottom of the oven, and a pilot-burner provided with a continuous line of jets arranged to propagate a flame from one part of the chamber transversely of and across the plane of the flame ports of the heating burner. A v 4 12. In a gas range, the combination with a heating chamber, of a burner mounted therein and provided with an upwardly extending hollow nipple communicating with the interior of the burner, and a pilot-burner extending downl to tthe heating burner and provided with a socket surrounding the nipp'le and communicating with the interior of the pilot-burner. p i

13. In a gas range, the combination with a heating chamber, of a heating burner mounted therein and provided with a nipple communicating with the inte-rlor of the burner, `and a pilot-burner tube extending to the heating burner and -provided in its side with'\ a hollow socket surrounding the nipple and ing burner, a tubular element in communication with the heating burner at a point remote from its said ports, and-a hollow member pertaining to said tube and positioned to engage said element.

15. In a gas range, the combination with a heating chamber, of a heating burner mounted therein, a pilot-burner formed with a head arranged to bear againstL a wall of said chamber in a higher plane than that of said 'heating burner, the body of said pilotburner being inclined from its head-toward the heating burner and being provided With an offset longitudinally extending socket, and supporting means on the heating burner entering said offset socket to sustain the lower end of the pilot-burner in itsproper relation to the heating burner.

16. In a gas range, the combination with a heating chamber, o f a heating burner therein, a pilot-burner arranged to bear against a wall of said chamber at one end and extending to said heating burner at its other end, a hollow suspending member on said pilot-burner communicating with the interior of the same, and a hollow supporting element on the heating burner communicating with the interior of the latter and engagthe pilot-burner and disposed on oppositev sides of the plane of the flame ports of the heating burner.

In testimony whereof, I have affixed my signature hereto.

/N HENRY Wi oDoWD.

tit) ing the said member to supply gas to the 

